Securing device for universal-joint members.



DE WITT C. COOKINGHAM & J. H. HERTNER.

SECURING DEVICE FOR UNIVERSAL JOINT MEMBERS. APPLICATION FILEDVJAN. 7,1913.

Patented.l[ar.14,l916.

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)NV NT JVJVZdZLV NEY fit? ATTO DE wrr'rc. oooxmenan AND JOHN H.iinnrimn, or CLEVELAND, OHIO, ASSIGNORS TO THE BAKER a an COMPANY, orCLEVELAND, OHIO, a oonrona'rion' or 01110.

SECT IRI'NG DEVICE FOR UNIVERSAL-JOINT MEMBERS.

- Patented Mar. 14, 1916.

Specification of Letters Patent.

Application filed January 7, 1913. Serial No. 740,588.

To all whom it may concern: j 7

Be it known that we, DE COOK- INGHAM and JOHN H. HERTNER,'0it1ZeI1S ofplane of section being indicated 'by theline sections of one of thejoints taken on the lines 22 and 3-3, respectively, Fig. 1;

the United States, and residents of Cleveand Fig. 4: is a side elevationof one end of 60 5 land, county of Cuyahoga, State of Ohio, the shaftshown in Fig, 1.

have jointly invented a new. and usefulpIm- L In Fig. 1 only brokensections of the drivp'rovement in Securing Devices for. Univermg shaft 1and the driven shaft 2, which resal-Joint Members, of which thefollowing quire to be connected, are shown, and so far is aspecification, the principle of the invenas the construction of theflexible connection 65 tion being herein explained and the best betweenthese shafts 1s concerned, either one mode in which we have contemplatedapthereof, may be considered the driving or plying that principle, so asto distinguish drlven shaft, as will be obvious. The conit from otherinventions. nectmg shaft 3, moreover, may be of any The presentimprovements relate to the desired length and the amount of play al- 7construction of universal joints such as are lowed between such shaftand the particular employed in shaft-driven, motor vehicles, fiexlblejoint selected for slip connection that is in motor vehicles in whichthe conwith sald shaft will vary upon the character nection fromthemotor to the rear axle is, of the service towhich the connection is tothrough the medium of a shaft. In such be applied. 7 75 construction oneuniversal joint is usually In their general features of construction,provided at the rear end vofthe driving the pair of jointsillustratedare very similar shaft, which may be either a continuation ofand may be described. together. Thus each the motor shaft, or anintermediate shaft consists of two joint members 4 and 5 in theconnected with the motor through suitable form of cross heads havingoppositely exso gearing, while another is provided just for- 1 tendingarms6 which are held in rectangu-- ward of the rearaxle between theconnectlar relatio'nship to each other, bein jouring driving shaft andashort spindle or 'naled in an annular frame. This f 'ame is shaft whichforms, in effect, part of the difprimarily made up of two similarsections in I ferential mechanism connecting the sections the form ofplain rings 7 that are adapted to 85 of such rear axle. j belightlysecured together by two screws 8,

.The object of he invention is toprovide' j'vas shown in Fig; 1, but aremore securely a universal joint that will be simpleand held together inthe assembled condition of light in construction, and yetfullycapablefthejoint by means of clamping tings, 9 and of withstandingthe severe trains'toiwhiclr 10, thefirst internallyv and theother exter-90 it is apt to be subjected in a connection, such" "nally threaded,which fit over such plain as just described; as also to providealjointrings, and together therewith form a. very thatmay be readilydisassembled and will solid and substantial annular structure. permit ofthe separation of the-connecting These clamping rings are securedagainst shaft therefrom, where a pair of such joints relative. rotationby means of a lock ring 11 95 40 are used as in the casein hand, withoutdisfitted into a groove, that is'l'eft between their assembling eitherof the joints. opposing edges, as ole rl y-shown in Fig. 1. To theaccomplishment of the foregoing The plain rings 7, w 'ich form the basisof and-related objects, the invention, thenconthe structure underconsideration, are prosists'of the means hereinafter fully describedvided with four equi-distantly spaced semi- 100 and particularly pointedout in the claims. circular notches, that, when the rings are Theannexed drawing and the following thu assembled, provide apertures 12adaptdescription set forth in detail-certain mech-, ed ;0 receivesuitable bushings 13 in which anism embodying the invention, such distheends of the joint members are journaled. closed means constituting,however, but one Such bushings are conveniently held against 1 O of thevarious mechanical forms in "which rotation by being provided withsquare the principle of the invention may be used. heads 14, that 'fitinto corresponding seats In said annexed drawings :Figure 1 is aprovided therefor upon the inner faces of central longitudinal sectionof two universal said rings. joints and a connecting shaft arranged forThe interior of each joint is closed against 11 use in the fashion abovereferred to, the entrance of dust and the like, by means of circularleather coverings 15 attached at one i edge to the correspondingclamping ring and at the other to a ring 22 mounted upon the adjacentjoint member, as will be readily" understood. a

The driving and driven shafts 1 and 2 are I secured to the outwardldirected joint members 4 in the usual fas ion by having their endssquared to fit into such joint members and threaded to receive retainingnuts 16 which likewise are wholly inclosed within I the leathercoverings of the joints.

The one end of the connecting shaft '3 (as shown, the one that is 'oinedto the shaft '2), is detachably' secure 7 joint member by means of acollar 17 threaded onto such member and adapted to engage a shoulder 18on the shaft, such colvlar having a locking screw 19 wherebyit mayberetained against rotation when the 7 parts are assembled. The one faceof the shoulder on the shaft is beveled to fit the ope 1 posing bevel-onthe ends of a series of lon ilugs 21- that 'fit'between those on thejointi that the shaft itselfis not secured to this joint againstlongitudinal movement by tudinally extending lugs- 21 formed in t einner face of the bore in the'joint member,"

and such shaft; -is "provided with similar longitudinally -exfinding,but somewhat shorter member .so as to j securely hold the shaft againstrotation the. latter. It will thus be seen that this endof theconnecting shaft is tightly secured to the joint member but means of thelugs 21' and hence by'loosening the collar 17 the end of the shaft maybe readily withdrawn upon ashort endwisemovement of the shaft awa fromthe joint;

To receive the other end 0 the shaft 3, the

inner joint member 5 of the other joint is' provided with a tubularextension '23, in which longitudinally extending lugs24areformed, as inthe member lastdescribed,

such lugs being engaged by corresponding I lugs 25 on the shaft endfitted in said mem her. This tubular extension and vthe lugs therein aremade of suflicient' length not only to 'permit of the amount ofendwiseplay of the shaft which may occur by reason of the relativetransverse displacement of the joints, but asl'o to permit of the shaftbeing withdrawn fromthe first described joint upon the collar beingloosened as aforesaid. A'dust cap 26 is threaded upon the outer end ofthe tubular extension of this last described joint member so as tothoroughly close its interior to the entrance ofdustrand water.

It is apparent from the foregoing descrip .tion that the connectingshaft may be readily separated from the joints, should this becomenecessary, without opening up the joints, which is desirable, inasmuchas thelatter are generally filled with lubricant and to the adjacentfollowingclaims or the equivalent of such member provided with a tubularextension provided with longitudinally extending recesses adapted toreceive such lugs on said should not be disturbed unless it is desiredto get at their interior for some special purpose. Should this becomenecessary, the clamping rings 9 and 10 may be readily unscrewed andremoved,; together with the leather coverings, so as to expose the innerplain rings 7 and the joint members 4: and 5 then simply removing thetwo retaining screws 8, these plain rings may be separated and the jointentirely disassembled for the replacement of the bushings, or such otherof the joint is, of course, rendered equally simple and convenient bythe construction in question.

Other modes of applying the principle of our .invention may be employedinstead of "the one explained, change being made as regards themechanism herein disclosed, provided the means stated by any of thestated means be employed; J

We therefore particularly point out and distinctlyclaim asour inventioni 1.. In mechanism of the character described, the combination of ashaft having a plurality of longitudinally extending lugs adjacent toone end and a beveled shoulder adjacent to the inner end of such lugs, a

shaft, such extension being also' provided with an internal beveledportion adapted I to fit such shoulderon said'shaft, and a 001-] larabutting against such shoulder and ad; 100

jus'tably engaging such extension.

2. In mechanism of the character described, the combination of a shafthaving a plurality of longitudinally extending lugs .adj acent to oneend and having also a shoul- 105 der adjacent to the inner end of suchlugs,

such shoulder being beveled on the side ad-' Ejacent such'lugs; a memberprovided with a tubular extension having longitudinally extendinrecesses adapted to receive such lugs 11 on sai shaft, such extensionbeing also pro.- vi'ded. with an internal beveled portion adapted to fitagainst the beveled portion' .ofsuch shoulder on said shaft, saidextension being externally threaded; and a collar 1 5' -abutting againstsuch shoulder, said collar being internally threaded to adapt it toadjustably and removably engage such. threaded extension of said member.

Signed by us this 4th day of January, 1 20 DE-WITT O. COOKINGHAM. JOHNH. HERTNER. Attested by D. T. DAvms,

' Jim. F. OBERLI proper, which. are journaled therein. By

